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Proceedings Paper

Visible sensor for yield stress caused by cyclic loading
Author(s): Kensuke Ichinose; Kiyoshi Taniuchi; Yoshimi Kosaka; Kenji Gomi
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Paper Abstract

Yield point is one of the most important mechanical properties of materials, however, there have not been any rules for obtaining the yield point caused by cyclic loading. Also in the case of analyzing the fatigue phenomena, the mechanical properties obtained by tension testing are normally used. It is widely known that when a tensile load is applied to a plane carbon steel specimen, Lueders' lines corresponding to yield stress occur on the surface. We decided to utilize Lueders' lines, in order to obtain the yield point under cyclic loading, therefore we investigated the state of their surface. Then it was clarified that we can utilize Lueders' lines in order to detect the yield point caused by cyclic loading. And that is used to detect the failure place of structural members. This method is very easy, namely only to have a smooth finish at the fixed portion, we can observe an occurrence of the striped pattern by the naked eye.

Paper Details

Date Published: 14 November 1997
PDF: 8 pages
Proc. SPIE 3241, Smart Materials, Structures, and Integrated Systems, (14 November 1997); doi: 10.1117/12.293519
Show Author Affiliations
Kensuke Ichinose, Tokyo Denki Univ. (Japan)
Kiyoshi Taniuchi, Meiji Univ. (Japan)
Yoshimi Kosaka, Tokyo Denki Univ. (Japan)
Kenji Gomi, Tokyo Denki Univ. (Japan)

Published in SPIE Proceedings Vol. 3241:
Smart Materials, Structures, and Integrated Systems
Alex Hariz; Vijay K. Varadan; Olaf Reinhold, Editor(s)

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